Evolution of cosmic structures in the expanding universe: Could not one have known it all before?

Abstract

Hans J.Fahr and M. Heyl

Most recent observations from the James Webb space telescope (JWST) have shown by highly resolved infrared observations of highest sensitivity that structure formation in the universe into the forms of early galaxies has already taken place at cosmic times less than 0.6 Gigayears after the Big-Bang. This is taken up with a big surprise in the whole astronomic community, though, as it seems, it could have been predicted from simple theoretical considerations. In this article, we are demonstrating that this result already would have clearly come out from theoretical considerations of gravitational structure formation processes in the early expanding universe just after the cosmic matter recombination period. While, however, it can be easily understood how matter structures of the order of 108 solar masses could evolve in the cosmic meantime, it nevertheless remains obscure, how galaxies of the type of the Milky way or more massive structures with 1011 or more solar masses can have evolved up to the present cosmic days without some not yet specified collapse-accelerating processes

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